/**
 * 文件名：UserController
 * 版权：Copyright 2017-2022 CMCC All Rights Reserved.
 * 描述：
 */

package com.hand.project.controller;

import com.hand.project.domain.User;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * The type User controller.
 *
 * @author shuai.wang02 @hand-china.com
 * @version 1.0
 * @date 2018 /11/11 20:45
 */
@RestController
@RequestMapping("/users")
public class UserController {
    /**
     * The constant users.
     */
//创建线程安全的user Map
    static Map<Long, User> users = Collections.synchronizedMap(new HashMap<Long,User>());

    /**
     * Get user list list.
     *
     * @return the list
     */
    @ApiOperation(value="获取用户列表", notes="")
    @RequestMapping(value = "/",method = RequestMethod.GET)
    public List<User> getUserList(){
        //处理user的Get请求 用来获取用户列表
        //@RequestMapping 从页面中传递参数来进行查询条件或者翻页信息的传递
        List<User> r = new ArrayList<>(users.values());
        return r;
    }

    /**
     * Post user string.
     *
     * @param user the user
     * @return the string
     */
    @ApiOperation(value="创建用户", notes="根据User对象创建用户")
    @ApiImplicitParam(name = "user", value = "用户详细实体user", required = true, dataType = "User")
    @RequestMapping(value = "/",method = RequestMethod.POST)
    public String postUser(@ModelAttribute User user){
        users.put(user.getId(),user);
        return "success";
    }

    /**
     * Get user user.
     *
     * @param id the id
     * @return the user
     */
    @ApiOperation(value="获取用户详细信息", notes="根据url的id来获取用户详细信息")
    @ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long")
    @RequestMapping(value = "/{id}",method = RequestMethod.GET)
    public User getUser(@PathVariable Long id){
        return users.get(id);
    }

    /**
     * Put user string.
     *
     * @param id   the id
     * @param user the user
     * @return the string
     */
    @ApiOperation(value="更新用户详细信息", notes="根据url的id来指定更新对象，并根据传过来的user信息来更新用户详细信息")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long"),
            @ApiImplicitParam(name = "user", value = "用户详细实体user", required = true, dataType = "User")
    })
    @RequestMapping(value = "/{id}" ,method = RequestMethod.PUT)
    public String putUser(@PathVariable Long id,@ModelAttribute User user){
        User u = users.get(id);
        u.setName(user.getName());
        u.setAge(user.getAge());
        users.put(id,u);
        return "success";
    }

    /**
     * Delete user string.
     *
     * @param id the id
     * @return the string
     */
    @ApiOperation(value="删除用户", notes="根据url的id来指定删除对象")
    @ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long")
    @RequestMapping(value = "/{id}",method = RequestMethod.DELETE)
    public String deleteUser(@PathVariable Long id){
        users.remove(id);
        return "success";
    }

}
